Precision Turbo and Engine BigStuff3 GEN3 PRO SEFI System Hardware & BigComm Software - Manual (Page 138)

BigStuff3 Pro SEFI System
Version 2.1 – February 2011 130
 What dwell times should be used with the LS1 coils sold with my system?
 With a 12V charging system.
 From idle to approximately 4,000 RPM? Use about 3.0 milliseconds near idle
and no more than about 4.0 milliseconds at approximately 4,000 RPM.
 From approximately 4,100 - Max RPM? Use no more than about 6 milliseconds
of total dwell time at max RPM.
 With a 16V charging system.
 From idle to approximately 4,000 RPM? Use about 2.0 milliseconds near idle
and no more than about 3.0 milliseconds at approximately 4,000 RPM.
 From approximately 4,100 - Max RPM? Use no more than about 4.5
milliseconds of total dwell time at max RPM.
 For LSx COP engines, make sure the cam sync override box in the “Operating Configuration”
drop down is not checked.
 The Ford Mod Motor COP system
must have the “Override Cam Sync Test box, checked.